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this FIXME will be addressed in the key backup MSC

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Hubert Chathi 2019-07-31 16:20:55 -04:00
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proposals/1946-secure_server-side_storage.md
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@ -54,13 +54,6 @@ expected that most encryption schemes would have `ciphertext` and `mac`
properties, where the `ciphertext` property is the unpadded base64-encoded
ciphertext, and the `mac` is used to ensure the integrity of the data.
FIXME: the key format was chosen so that existing backups could be easily
migrated by just copying the configuration from the backup config to the key
description. However, we need a way of signalling that the key for the backup
is the same as the key for decrypting the other bits. Maybe a special flag in
the account data? Or special case backups somehow, say, have clients inspect
the backup's `auth_data` to see of the key config is the same?
#### Encryption algorithms
##### `m.secret_storage.v1.curve25519-aes-sha2`